Electrical apparatus for operating -bolts



(No Model.)

W. VOGEL.

ELECTRICAL APPARATUS-FOR OPERATING BOLTS.

No. 309,585. Patented Dec. 23, 1884.

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XVILLIAM YOGEL, OF CHICAGO, ILLINOIS.

ELECTRlCAL APPARATUS FOR OPERATBNG BOLTS.

(JPEZCIPECATION forming part of Letters Patent No. 809,585, dated December 23, 1884:.

Application filed March .20, 1884. (No model.)

To all who/it it may concern.-

Be it known that I, WILLIAM VocnL, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Electrical Apparatus for Operating Bolts upon a Door; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it,-reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in electrical apparatus for operating bolts; and it consists in the combination of a door, one or more bolts or other fastening devices which are attached to an armature or armatures, suitable connecting-wires, battery, cndwisemoving permanent magnet or electromagnet,

and a circuit-closer, as will be more fully described hereinafter.

The object of my invention is to operate the bolts or fastening devices which are attached to the inner side of a door by means of electricity, and to entirely dispense with all locks which are operated by keys.

Figure l is a vertical section taken through a safe or other similar device to which my invention is applied. Fig. 2 is a side elevation of a door, taken from the inner side. Fig. 3 is a detail view.

A represents the door of a house, a safe, a box, or any similar building or device. This door, instead of being supplied with a lock which is operated by a key, is locked in position, when closed, by means of the bolts B, of which there may be one, two, four, or any de sired number. These bolts are springactuated, and have attached to their inner ends the armatures C.

In between the edge of the door on its free side and the door-frame is placed a suitable spring, D, of any suitable shape, which serves to force the door outward from the frame as soon as the bolts B are drawn inward by'the armature C, so as to force the door open a slight distance.

Secured to the inner side of the door are any suitable number of electro-magnets, E, through which the currents are passed by the wires G. One of these wires is connected directly to one pole of the battery H, while the other one is connected to the spring circuitcloser 1. Leading from the opposite pole of to a contact, K.

Placed inside of the box, safe, building, or other structure is a small electro or permanent magnet, L, which has a slight endwise movement, and which is connected at its inner end to the spring circuit-closer I. If an electro-magnet is used, it will be connected to a permanent battery, N. The outer end of this electro or permanent magnet L will extend over close to the outer side of the structure in which it is placed, so that when a person wishes to unlock the door A he has but to apply a soft piece of iron, 0, just opposite the end of the magnet L, when the endwisc movement of the magnet L toward the soft piece of iron G will cause the spring circuit-closer I to come in contact with the point K, when a current is at once sent from the battery through the electro-magnet L, for the purpose of attracting the armature O, and thus pull ing the bolts D inward, so as to release the door. When the soft piece of iron 0 is removed, the spring circuitcloser I draws the magnet L inward, the circuit is broken, and the spring connected to the bolts 13 instantly forces them back into position.

The point at which the electromagnets L will be placed will be kept a secret from every one except those who have a right to open the box, safe, or other structure. This magnetL may be, of course,arranged either inside of the structure or at any suitable distance from it, and the electro-magnet will be covered in such a manner that its presence would never be known or suspected. If the magnet is placed under the floor, a person by having a piece of soft iron attached to the heel or sole of the boot or shoe can open the door with out any person knowing or suspecting how or when the bolts were operated.

Having thus described my invention, I claim- 1. The combination of the door, suitable bolts connected thereto, each one of which is operated by electro-magnets, suitable wires, a battery, H, an endwise-inoving magnet, L, the contact-breaker which is connected to the ICO- magnet, and the piece of iron which is used I battery which is connected to the eleetro-mag- 10 for the purpose of causing the magnet to move net L substantially as set forth. cndwise, and thus form a circuit, substantially i In testimony whereof I ilfllX my signature in as shown. presence of two witnesses.

2. In an electric apparatus for operating bolts, the combination of a magnet, L, a sp ring- \VILLIAM VOGEL' contact which is connected to the magnet, a contact-point, K, the battery H and wires G J, armature O, spring-actuated bolts 13, and a \Vitncsses:

F. A. LEI-IMANN, A. S. PATTISON. 

